S-95345A020 2-56 x 3/4" ASME B18.13 Stainless Steel Pan Head Phillips Screws with Internal-Tooth Lock Washer

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish for extended service life in harsh environments
• Reliable vibration resistance through integrated internal-tooth lock washer that maintains clamping force under dynamic loads
• High tensile strength of 70,000 psi ensures dependable performance in demanding industrial applications
• Quick installation with Phillips drive and coarse UNC threads that reduce assembly time and prevent cross-threading
• Secure fastening provided by the pan head design that offers excellent driver engagement and distributed bearing surface
• Full threading along the 3/4" length allows for maximum adjustment flexibility and grip range
• Regulatory compliance with major industry standards including ASME B18.13, RoHS 3, and REACH for global market acceptance

Professional Applications & Engineering Value

This 2-56 UNC rounded head Phillips screw with lock washer delivers exceptional engineering value across industrial applications where vibration resistance and corrosion protection are critical. The combination of 18-8 stainless steel material and passivated finish creates a robust barrier against chemical exposure and environmental degradation, making it ideal for machinery, electrical enclosures, and outdoor equipment. The integrated internal-tooth lock washer manufactured from 410 stainless steel provides permanent locking action that prevents loosening under continuous vibration, eliminating the need for secondary locking mechanisms. The coarse thread design ensures rapid installation in various materials while the Phillips drive system offers familiar, efficient torque application for production line efficiency.

Specification Summary & Compliance

This fully threaded screw features Class 2A thread fit tolerance for consistent assembly performance and UNC coarse threads measuring 2-56 size. Manufactured to ASME B18.13 specifications for dimensional accuracy and performance reliability. The complete assembly, including both screw and washer, features passivated finish for enhanced corrosion protection. Compliance verified with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and global market acceptance for industrial fastener applications.